A company is designing a disaster recovery (DR) architecture for an important application on AWS. The company has determined that the RTO is 5 minutes with a minimal instance capacity to support the application in the AWS DR site. The company needs to minimize costs for the DR architecture.
Which DR strategy will meet these requirements?
D.backup and restore
Correct. This solution meets the requirement for an RTO of 5 minutes. The instances run at a low capacity and can scale within minutes.
For more information about warm standby, see Plan for Disaster Recovery (DR).
Incorrect. This solution would not meet the requirement for an RTO of 5 minutes. The instances are idle and unable to run and scale to full capacity within 5 minutes.
Incorrect. Because this is an active-active environment, this solution would address the requirement for an RTO within moments. The services are already running at full capacity within that time. However, this solution costs more than is necessary to meet the company’s requirements.
Incorrect. This solution would not achieve the RTO of 5 minutes that the company requires.